BPO

 

Benzoyl Peroxide (BPO) – High-Purity EPS Polymerization Initiator

Product Overview

Benzoyl Peroxide (CAS No. 94-36-0), commonly referred to as BPO, is a critical organic peroxide used as a primary initiator in the suspension polymerization of Expanded Polystyrene (EPS). As the leading EPS additive solution provider, Senthos Group delivers Benzoyl Peroxide in a stable granular form with 98.2% purity (dry basis), ensuring consistent free radical generation and uniform bead formation for global manufacturers.

Technical Specifications (TDS)

PropertySpecification
Chemical NameBenzoyl Peroxide
AbbreviationBPO
CAS Number94-36-0
AppearanceWhite Crystalline Granule
Active Content (Dry) 98.2%
Assay (with Moisture)75% 
Moisture Content24% pm 
Total Chlorine0.25%

Why Choose Senthos Benzoyl Peroxide (BPO)?

  1. Optimized for EPS Polymerization: Our Benzoyl Peroxide is engineered to provide a steady decomposition rate at 72 (half-life of 10 hours), which is ideal for controlling the initial phase of styrene polymerization. Normally used with TBPB together.

  2. Low Impurity Profile: By maintaining total chlorine levels below 0.25%, our Benzoyl Peroxide prevents interference with the efficiency of flame retardant additives in the final EPS foam.

  3. Safety & Stability: To ensure safe global logistics, we supply Benzoyl Peroxide with a standardized 24% moisture content, reducing sensitivity to shock and friction during transport.

Global Applications

  • EPS & XPS Resin: The primary initiator for high-quality bead production.

  • Acrylic & Polyester Resins: Acts as an efficient catalyst for curing and crosslinking applications.

  • Industrial Bleaching: Utilized in specialized grease refinement and polymer sheet aggregation.

Download TDS (PDF)